Properties of the Number 22197

Twenty-Two Thousand One Hundred Ninety-Seven

Basics

Value: 22196 → 22197 → 22198

Parity: odd

Prime: No

Previous Prime: 22193

Next Prime: 22229

Digit Sum: 21

Digital Root: 3

Palindrome: No

Factorization: 3 × 7 ² × 151

Divisors: 1, 3, 7, 21, 49, 147, 151, 453, 1057, 3171

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 101011010110101

Octal: 53265

Duodecimal: 10A19

Hexadecimal: 56b5

Square: 492706809

Square Root: 148.98657657654934

Classification

Fibonacci: No

Bell Number: No

Factorial Number: No

Regular Number: No

Perfect Number: No

Special

Kaprekar Constant: No

Munchausen Constant: No

Armstrong Number: No

Kaprekar Number: No

Catalan Number: No

Vampire Number: No

Taxicab Number: No

Super Prime: No

Friedman Number: No

Fermat Number: No

Cullen Number: No

OEIS Sequences

Numbers k such that k and k + 1 are both Niven numbers in base 3/2 (A342426). A342427

T(n,k)=Number of (n+1)X(k+1) 0..2 arrays with nondecreasing x(i,j)-x(i,j-1) in the i direction and nondecreasing x(i,j)+x(i-1,j) in the j direction. A250755

Standard composition numbers of compositions whose maximal runs all belong to {(1), (2,2), (3,3,3), ...}. A389530

Values of n such that A006046(n)/n^θ, where θ=log(3)/log(2), is a local minimum, computed according to Harborth's recurrence. A77465

Cumulative minima of A006046(n)/n^θ, where θ=log(3)/log(2), is a local minimum. A84230

Consecutive states of the linear congruential pseudo-random number generator for 16-bit WATFOR/WATFIV when started at 1. A384158

a(n) = A061037(7·n+2). A165943

a(n) = prime(n)²-4. A166010

a(n) = (4·n+3)*(4·n+7). A85027

Numbers n such that n⁶ + 272 is prime. A161998